Results 11 to 20 of about 71 (43)

Extreme neck elongation evolved despite strong developmental constraints in bizarre Triassic reptiles—implications for neck modularity in archosaurs [PDF]

open access: yesRoyal Society Open Science
The Triassic radiation of vertebrates saw the emergence of the modern vertebrate groups, as well as numerous extinct animals exhibiting conspicuous, unique anatomical characteristics.
Adam Rytel   +3 more
doaj   +2 more sources

Osteological re-description of Macrocnemus fuyuanensis (Archosauromorpha, Tanystropheidae) from the Middle Triassic of China [PDF]

open access: yes, 2020
Over the past decades, an increasing number of reptiles have been described from the Middle Triassic of southern parts of China. Marine reptiles such as thalattosaurs, ichthyosaursand sauropterygians dominated these paleofaunas and are known to have had a Tethys-wide distribution.
Scheyer, Torsten M   +4 more
openaire   +2 more sources

A NEW PROLACERTIFORM REPTILE FROM THE LATE TRIASSIC OF NORTHERN ITALY

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
A new diapsid reptile is described from the locality of Cene (Seriana Valley, near Bergamo, Lombardy, Northern ltaly) from an outcrop of the Calcare di Zorzino (Zorzino Limestone) Formation (Middle Norian, Late Triassic).
SILVIO RENESTO
doaj   +2 more sources

Cranial morphology of the tanystropheid Macrocnemus bassanii unveiled using synchrotron microtomography. [PDF]

open access: yesSci Rep, 2020
The genus Macrocnemus is a member of the Tanystropheidae, a clade of non-archosauriform archosauromorphs well known for their very characteristic, elongated cervical vertebrae. Articulated specimens are known from the Middle Triassic of Alpine Europe and
Miedema F   +4 more
europepmc   +4 more sources

The locomotor ecomorphology of Mesozoic marine reptiles

open access: yesPalaeontology, Volume 66, Issue 2, March/April 2023., 2023
Abstract The aftermath of the end‐Permian mass extinction provided ecological opportunities for many groups of reptiles, marking the beginning of reptile dominance of the Mesozoic oceans. Clades such as ichthyosaurs, thalattosuchians, sauropterygians, mosasaurs and turtles evolved a remarkable diversity of ecological niches and became important ...
Susana Gutarra   +5 more
wiley   +1 more source

Relative skull size evolution in Mesozoic archosauromorphs: potential drivers and morphological uniqueness of erythrosuchid archosauriforms

open access: yesPalaeontology, Volume 65, Issue 3, May/June 2022., 2022
Abstract Little is known about the large‐scale evolutionary patterns of skull size relative to body size, and the possible drivers behind these patterns, in Archosauromorpha. For example, the large skulls of erythrosuchids, a group of non‐archosaurian archosauromorphs from the Early and Middle Triassic, and of theropod dinosaurs are regarded as ...
Jordan Bestwick   +8 more
wiley   +1 more source

Tanystropheus still conspicuous—an osteological redescription of the first tanystropheid [PDF]

open access: yesActa Palaeontologica Polonica
Archosauromorphs were the dominant clade of terrestrial vertebrates during the Mesozoic. Extant birds and crocodilians represent only a small remnant of the diversity of this lineage preserved within the fossil record.
Adam Rytel
doaj   +1 more source

Sobreviventes: diversificação de Archosauromorpha após a Extinção Permo-Triássica [PDF]

open access: yes, 2020
: The Archosauromorpha is defined as the clade that comprises all diapsids more closely related to the lineage of birds (Ornithodira or Avemetatarsalia) and crocodylians (Pseudosuchia or Crurotarsi) than to Lepidosauria. In addition to their ‘basal’ taxa
Oliveira, Tiane Macedo de   +2 more
core   +1 more source

A new archosauromorph from South America provides insights on the early diversification of tanystropheids - Fig 5

open access: yes, 2020
A- Archosauromorph phylogeny showing the recovered position of Elessaurus gondwanoccidens (UFSM 11471), from the matrix of Pritchard et al. [6] and the geographic distribution maps for Tanystropheidae through time (green circles) and the Brazilian fossil
Átila Augusto Stock Da-Rosa (5635046)   +4 more
core   +1 more source

The Phylogeny and Palaeobiology of “Protorosauria” with a Focus on the Genus Tanystropheus

open access: yes, 2020
Summary “Protorosaurs” are a group of early archosauromorph reptiles (i.e. stem-archosaurs, the reptile clade containing modern birds and crocodylians).
Spiekman, Stephan N F; https://orcid.org/
core   +2 more sources

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